Shweta D.

Need an AI web app or SaaS MVP shipped fast, without rework later? I build production software that stays easy to change as load grows. Clean React fronts. Dependable Node.js APIs. RAG that answers from your data. I'm Shweta Dubey, a Senior Full-Stack AI Engineer with 8.3+ years. I've taken products from sketch to launch. HyROI and a custom timesheet platform went from ideas to deployed systems under my lead. I handled UX flows, the React front end, secure API contracts, and the data layer. On the front end I ship fast, accessible React with TypeScript. Reusable components and sane state. Server data fetching where it helps performance. On the backend I build Node.js REST services with clear contracts. Pagination, auth, rate limits, and query tuning baked in. Optional GraphQL when it adds value. For AI features I integrate OpenAI with LangChain. Chat assistants and document Q&A. Summarization as needed. RAG over PDFs and internal wikis so answers are grounded. I set up embeddings and retrieval, plus eval dashboards so you can watch outputs and improve them. Multi tenant setups supported, tenant data stays isolated. Infra stays predictable on AWS with Docker. Kubernetes when the workload calls for it. Data on PostgreSQL or MongoDB with migrations and tuning. CI/CD from repo to production. What I can help with: - SaaS MVPs in React and Node.js, with auth and billing. Dashboards and settings, role based access. - AI chat and Q&A using OpenAI plus LangChain. RAG over PDFs and Google Drive. Internal KB support. - Backend REST APIs. Versioned endpoints, pagination, rate limits, caching, webhooks. - Internal tools and admin portals in React with TypeScript. - Data modeling and performance tuning on PostgreSQL or MongoDB. - CI/CD pipelines to AWS with Docker and Kubernetes. Observability, alerts, logs. How I work: - Discovery call and scope, then a clear plan. - Prototype or API spec in 48 to 72 hours. - Milestones with weekly demos and progress notes. - Clean Git history. Small PRs with review checks. - Testing matched to risk, API tests and unit tests where they pay off. - Handover docs and runbooks. Short video walkthrough. - Jira for tracking, async updates as needed. I work 25 to 30 hours per week, IST. US and EU overlap, plus UK hours where needed. Open to a 3 to 5 day pilot.